I just watched a video on PowerStrokehelp.com and learned how to change the oil in the top of the engine.

How important is this? The oil to this part of the engine is fed from the bottom just like all other parts of the engine, and this was mentioned in the video, but it also seems that the oil doesn't circulate back down quite as much once it makes it there to feed the injectors, etc.

Would it be advisable to change this oil every so often or just keep changing the regular engine oil as normal and not even worry about it?

You are going to get a few opinions on changing the top and oil, but I know the average idea is to just leave it. It does get cycled and it will be fine to leave it. If it makes you feel better then go ahead, no biggy either way.
-Phil

I just watched a video on PowerStrokehelp.com and learned how to change the oil in the top of the engine.

How important is this? The oil to this part of the engine is fed from the bottom just like all other parts of the engine, and this was mentioned in the video, but it also seems that the oil doesn't circulate back down quite as much once it makes it there to feed the injectors, etc.

Would it be advisable to change this oil every so often or just keep changing the regular engine oil as normal and not even worry about it?

Thanks

There is a thread floating around somewhere about a guy who sent a pair of sample off to blackstone for a UOA of his crankcase oil and his top oil...blackstone couldn't tell the difference. IMHO you don't need to change the top end oil.

As stated, it's not a separate oil reservoir. The oil gets pushed up into there so it can be pressurized for the injector event. Once that occurs, it's back to the pan at some point to get filtered by the oil filter and then back into action.

It's your call whether you want to take the extra time to do it. FWIW, there are varying opinions on the value of things seen on Powerstrokehelp.com.

I change it because I don't like my oil getting black right away after change
It stays golden for a couple thousand miles that way on my truck

I kinda feel the same, also the same reason i drain my converter and blow out the oil cooler and lines at transmission fluid changes. When I change it, I wanna change as much as i possibly can, so i pull an oil rail plug on both sides and suck it all out then refill the rails and the HPOP reservoir.

Last edited by GAS; 01-26-2012 at 05:57 PM.
Reason: Plus i only put enough miles on my truck to change oil once a year, pretty sad eh?

I don't do it, nor do I ever plan on doing it and so far I have over 250k miles on my original injectors and HPOP. Don't see much reason in it myself since it gets cycled through. I bet that there is almost as much oil left over in the pan after draining it since my driveway is on a slight hill. One quart out of 16(ish) isn't that big of a deal to me as long as it is getting changed regularly. Maybe if the truck sat for a long time or something, but not under normal use/service. Just my $.02
-Aaron

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